Opened 3 years ago

Last modified 3 months ago

#28238 new defect

Conversion to polynomials over symbolic ring doesn't work properly

Reported by: soehms Owned by:
Priority: minor Milestone: sage-9.7
Component: coercion Keywords: symbolic ring days100
Cc: Merged in:
Authors: Reviewers:
Report Upstream: N/A Work issues:
Branch: Commit:
Dependencies: Stopgaps:

Status badges

Description

The problem occured in context with #4618 (see comment 32) and is explained by the following code:

sage: PS = PolynomialRing(SR,'x')
sage: P = PolynomialRing(QQ,'x')
sage: q = P((1,1,5)); q
5*x^2 + x + 1
sage: p = PS(q)
sage: p.coefficients()
[5*x^2 + x + 1]
p in SR
True

Change History (7)

comment:1 Changed 3 years ago by embray

  • Milestone changed from sage-8.9 to sage-9.1

Ticket retargeted after milestone closed

comment:2 Changed 2 years ago by mkoeppe

  • Milestone changed from sage-9.1 to sage-9.2

Moving tickets to milestone sage-9.2 based on a review of last modification date, branch status, and severity.

comment:3 Changed 22 months ago by mkoeppe

  • Milestone changed from sage-9.2 to sage-9.3

comment:4 Changed 16 months ago by mkoeppe

  • Milestone changed from sage-9.3 to sage-9.4

Sage development has entered the release candidate phase for 9.3. Setting a new milestone for this ticket based on a cursory review.

comment:5 Changed 12 months ago by mkoeppe

  • Milestone changed from sage-9.4 to sage-9.5

comment:6 Changed 8 months ago by mkoeppe

  • Milestone changed from sage-9.5 to sage-9.6

comment:7 Changed 3 months ago by mkoeppe

  • Milestone changed from sage-9.6 to sage-9.7
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